OK, this is gross, but I have a question. This past weekend my husband and I were at a friends house for dinner. We had a fantastic meal of halibut (bought, I believe, at Costco) and I was thoroughly satisfied. On the drive home my husband told me that in the middle of his halibut he discovered a worm, about the thickness of a strand of spaghetti or vermicelli, and it was WIGGLING. Needless to say, he covered it with a piece of something else on his plate and stopped eating. No, he didn't tell our hosts. I am completely grossed out and wonder if one can find worms in all fish. I think the fish was completely cooked through (at least mine was). Is this worm a parasite? Could I have eaten one myself without knowing it? I *used* to love fish and now I don't think I'll be able to eat it for a while... a looong while. Can someone out there explain this or make me feel better about eating fish in the future??!! Thanks in advance!